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Hi All,
Thanks for the comments, and yes ANDREW it was with the Canon EOS300D (modified- by me).

Re stacking, combining pictures, I think Images Plus will do the trick, but takes some learning how, I tried IRIS, but too much for me, would be fine on Webcam pictures, all automatic.........I think the best way to go with DSLR pictures is to seperate them into LRGB, work with the L frame, then recombine (this is what I do with FITs files ex the MX7C), all very time consuming, when you look at it, although CCD/CMOS imaging is faster than Film by the time you take into consideration the DSLR type processing time im certain they would work out the same total Imaging/Processing time in the end, have a look on AstronomyDaily I noticed a Pix of M31 taken on film, he says 30 Sec. Exp.????????, fantastic picture.

cheers...........Jim